Topband: 50 ohm direct burial coax cable

[Bill Wichers]

Usually "direct burial" cable is just a PE jacket with a flooding compound in the braid. 

Times Microwave makes a direct burial variant of their LMR-400 called "LMR-400-DB". It adds a flooding compound in the braid. The flooding compound will seal small fractures in the jacket.

BTW, for everyone, there is a new "dry" type of water blocking compound used in fiber optic cables that is usually in the form of a powder or a yarn. When it gets wet it expands and seals the damaged cable area. It's lots easier to work with than the more traditional gel-type flooding compounds. Maybe if we're lucky we'll see someone start making coax that way!

  -Bill

> -----Original Message-----
> From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of
> mstangelo at comcast.net
> Sent: Tuesday, June 03, 2014 10:10 AM
> To: topband at contesting.com
> Subject: Topband: 50 ohm direct burial coax cable
> 
> Does anyone know of a source for 50 ohm "RG-8" type direct burial coax
> able.
> 
> I can find many sources for CATV and Satellite 75 ohn cable but not 50 ohm.
> 
> Direct burial cable is coated with and anti-fungal compound. I''ve had success
> with 75 ohm cables for receiving and want to purchase 50 ohm direct burial
> for transmitter feeds.
> 
> Thanks,
> 
> Mike N2MS
> _________________
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